[cisco-voip] Nortel 1000E and Callmanager 4.2

[Peter Slow]

Aman,
   while there may be documentation out there for 4.1, if you have a
SIP requirement for something you are doing today, you should use 6.x.
You'll have many more configuration options availalbe to make this
work properly.

Yes, with 4.x you will need an MTP/xcoder with every single call over
that trunk, and you will only be able to do g.711 to and from the
nortel.
-Pete

On 6/20/08, Aman Chugh <aman.chugh at gmail.com> wrote:
>
> Hi,
>
> I am designing an integration between Nortel CS1000E running release 5.0 and
> CallManager 4.2 using SIP trunk, I would be running an IVR on Nortel which
> would have menu options for Cisco IP Phone users, I just wanted to
> understand how would DTMF work across the two systems over SIP , Do I need a
> hardware MTP with callmanager as well. I have looked at document available
> on Cisco Interoperability portal for Nortel CS 1000M and Cisco callmanager
> 4.1 , it mentions END to END DTMF is not supported.  What do they mean by
> END to END DTMF. Any help would be appreciated.
>
> http://www.cisco.com/en/US/solutions/ns340/ns414/ns728/networking_solutions_products_genericcontent0900aecd805b561d.html
>
> Thanks,
>
> Aman
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